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Finding the Fourth Proportional to 5,760.48, 8,640.30 and 2,249.83

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Solution

The fourth proportional to 5,760.48, 8,640.30 and 2,249.83 is: 3,374.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.48 : 8,640.30 = 2,249.83 : x
  2. Step 2: Convert to fraction form
    5,760.48/8,640.30 = 2,249.83/x
  3. Step 3: Cross multiply
    5,760.48x = 8,640.30 × 2,249.83
  4. Step 4: Simplify right side
    5,760.48x = 19,439,176.78
  5. Step 5: Solve for x
    x = 19,439,176.78/5,760.48
  6. Step 6: Final answer
    x = 3,374.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.